package com.cx;

/**
 * @author zhangshuai
 * @version V1.0
 * @Project Java2_26
 * @Package com.cx
 * @Description:
 * @Date 2025/5/20 10:11
 */

public class refjectTest {
    public static void main(String[] args) {


    }
}
class Animal{

}
class Dog extends Animal{

}
class Cat extends Animal{

}